Geforce GTX 680 vs Radeon RX 6800

Intro

Compare all of that to the Radeon RX 6800, which features a clock speed of 1700 MHz and a GDDR6 memory frequency of 2000 MHz. It also features a 256-bit memory bus, and uses a 7 nm design. It is made up of 3840 SPUs, 240 Texture Address Units, and 96 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680		195 Watts
Radeon RX 6800		250 Watts
	Difference: 55 Watts (28%)

Memory Bandwidth

Theoretically, the Radeon RX 6800 should be much faster than the Geforce GTX 680 in general. (explain)

Radeon RX 6800		524288 MB/sec
Geforce GTX 680		192256 MB/sec
	Difference: 332032 (173%)

Texel Rate

The Radeon RX 6800 will be quite a bit (about 217%) more effective at anisotropic filtering than the Geforce GTX 680. (explain)

Radeon RX 6800		408000 Mtexels/sec
Geforce GTX 680		128768 Mtexels/sec
	Difference: 279232 (217%)

Pixel Rate

The Radeon RX 6800 is quite a bit (about 407%) more effective at full screen anti-aliasing than the Geforce GTX 680, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 6800		163200 Mpixels/sec
Geforce GTX 680		32192 Mpixels/sec
	Difference: 131008 (407%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.